Pest control composition

ABSTRACT

Disclosed is a pest control composition comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent as active ingredients. The combined use of the two ingredients can provide a better insecticidal effect.

CROSS-REFERENCE TO RELATED APPLICATION

The application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 58540/2007, filed on Mar. 8, 2007; the entire contents of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of Invention

The present invention relates to a pest control composition that comprises a pyripyropene derivative or an agriculturally and horticulturally acceptable salt thereof and other pest control agent and that is agriculturally and horticulturally useful.

2. Background Art

Applied and Environmental Microbiology (1995), 61(12), 4429-35 and WO 2004/060065 describe insecticidal activity of pyripyropene A, and WO 2006/129714 describes pyripyropene A derivatives and the insecticidal activity of the pyripyropene A derivatives. The Pesticide Manual, the 13th edition, published by The British Crop Protection Council and SHIBUYA INDEX, the 10th edition, 2005, published by SHIBUYA INDEX RESEARCH GROUP describe many pest control agents that have hitherto been developed and used. Up to now, however, there is no document describing the effect of a mixture of the pyripyropene derivative with other pest control agent(s).

On the other hand, control at a low dose is desired from the viewpoints of environmental consideration and influence on organisms that are not target.

SUMMARY OF THE INVENTION

The present inventors have now found a composition that comprises a pyripyropene derivative or an agriculturally and horticulturally acceptable salts thereof and other pest control agent and possesses an excellent control effect, and use of the composition. The present invention has been made based on such finding.

Accordingly, an object of the present invention is to provide a composition that comprises a pyripyropene derivative or an agriculturally and horticulturally acceptable salts thereof and other pest control agent and possesses an excellent control effect, and use of the composition.

According to one aspect of the present invention, there is provided a pest control composition comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent as active ingredients:

wherein

-   -   Het₁ represents optionally substituted 3-pyridyl,     -   R₁ represents hydroxyl,         -   optionally substituted C₁₋₆ alkylcarbonyloxy,         -   optionally substituted C₂₋₆ alkenylcarbonyloxy,         -   optionally substituted C₂₋₆ alkynylcarbonyloxy,         -   optionally substituted C₁₋₆ alkyloxy,         -   optionally substituted C₂₋₆ alkenyloxy,         -   optionally substituted C₂₋₆ alkynyloxy,         -   optionally substituted benzyloxy, or         -   oxo in the absence of a hydrogen atom at the 13-position or     -   the bond between 5-position and 13-position represents a double         bond in the absence of R₁ and a hydrogen atom at the 5-position,     -   R₂ represents hydroxyl,         -   optionally substituted C₁₋₁₈ alkylcarbonyloxy,         -   optionally substituted C₂₋₆ alkenylcarbonyloxy,         -   optionally substituted C₂₋₆ alkynylcarbonyloxy,         -   optionally substituted benzoyloxy, or         -   optionally substituted C₁₋₆ alkylsulfonyloxy,     -   R₃ represents a hydrogen atom,         -   hydroxyl,         -   optionally substituted C₁₋₁₈ alkylcarbonyloxy,         -   optionally substituted C₂₋₆ alkenylcarbonyloxy,         -   optionally substituted C₂₋₆ alkynylcarbonyloxy,         -   optionally substituted benzoyloxy,         -   optionally substituted C₁₋₆ alkylsulfonyloxy,         -   optionally substituted benzenesulfonyloxy, or         -   optionally substituted five- or six-membered heterocyclic             thiocarbonyloxy, or     -   R₂ and R₃ together represent —O—CR₂′R₃′—O— wherein     -   R₂′ and R₃′, which may be the same or different, represent a         hydrogen atom, C₁₋₆ alkyl, C₁₋₆ alkyloxy, C₂₋₆ alkenyl,         optionally substituted phenyl, or optionally substituted benzyl,         or R₂′ and R₃′together represent oxo or C₂₋₆ alkylene, and     -   R₄ represents a hydrogen atom,         -   hydroxyl,         -   optionally substituted C₁₋₁₈ alkylcarbonyloxy,         -   optionally substituted C₂₋₆ alkenylcarbonyloxy,         -   optionally substituted C₂₋₆ alkynylcarbonyloxy,         -   optionally substituted benzoyloxy,         -   optionally substituted C₁₋₆ alkylsulfonyloxy,         -   optionally substituted benzenesulfonyloxy,         -   optionally substituted benzyloxy,         -   optionally substituted C₁₋₆ alkyloxy,         -   optionally substituted C₂₋₆ alkenyloxy,         -   optionally substituted C₂₋₆ alkynyloxy,         -   C₁₋₆ alkyloxy-C₁₋₆ alkyloxy,         -   C₁₋₆ alkylthio-C₁₋₆ alkyloxy,         -   C₁₋₆ alkyloxy-C₁₋₆ alkyloxy-C₁₋₆ alkyloxy,         -   optionally substituted C₁₋₆ alkyloxycarbonyloxy,         -   optionally substituted C₁₋₆ alkylaminocarbonyloxy,         -   optionally substituted saturated or unsaturated five- or             six-membered heterocyclic oxy,         -   optionally substituted saturated or unsaturated five- or             six-membered heterocyclic carbonyloxy,         -   optionally substituted thieno[3,2-b]pyridylcarbonyloxy,         -   optionally substituted 1H-indolylcarbonyloxy,         -   optionally substituted saturated or unsaturated five- or             six-membered heterocyclic thiocarbonyloxy, or         -   oxo in the absence of a hydrogen atom at the 7-position.

According to a second aspect of the present invention, there is provided a method for protecting useful plants from pests, comprising treating an object pest, an object useful plant, or a seed, a soil, or a cultivation carrier of the object useful plant with the pest control composition.

There is also provided use of the above pest control composition for the protection of useful plants from pests.

DETAILED DESCRIPTION OF THE INVENTION

The term “halogen” as used herein means fluorine, chlorine, bromine, or iodine, preferably fluorine, chlorine, or bromine.

The terms “alkyl,” “alkenyl,” and “alkynyl” as used herein as a group or a part of a group respectively mean alkyl, alkenyl, and alkynyl that the group is of a straight chain, branched chain, or cyclic type or a type of a combination thereof unless otherwise specified. Further, for example, “C₁₋₆” in “C₁₋₆ alkyl” as a group or a part of a group means that the number of carbon atoms in the alkyl group is 1 to 6. Further, in the case of cyclic alkyl, the number of carbon atoms is at least three.

The term “heterocyclic ring” as used herein means a heterocyclic ring containing one or more, preferably one to four, heteroatoms, which may be the same or different, selected from the group consisting of nitrogen, oxygen, and sulfur atoms. Further, the expression “optionally substituted” alkyl as used herein means that one or more hydrogen atoms on the alkyl group may be substituted by one or more substituents which may be the same or different. It will be apparent to a person having ordinary skill in the art that the maximum number of substituents may be determined depending upon the number of substitutable hydrogen atoms on the alkyl group. This is true of functional groups other than the alkyl group.

3-Pyridyl represented by Het₁ is optionally substituted, and substituents include halogen atoms, C₁₋₄ alkyl, C₁₋₄ alkyloxy, nitro, cyano, formyl, trifluoromethyl, trifluoromethyloxy, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, acetyl, or acetyloxy. Preferred are halogen atoms and trifluoromethyl. A chlorine atom and trifluoromethyl are more preferred.

“C₁₋₆ alkylcarbonyloxy” represented by R₁ is optionally substituted, and substituents include halogen atoms, cyano, phenyl, trifluoromethyloxy, or trifluoromethylthio.

“C₁₋₁₈ alkylcarbonyloxy” represented by R₂, R₃ and R₄ is preferably C₁₋₆ alkylcarbonyloxy, more preferably ethylcarbonyloxy or C₃₋₆ cyclic alkylcarbonyloxy. The C₁₋₁₈ alkylcarbonyloxy group is optionally substituted, and substituents include halogen atoms, cyano, C₃₋₆ cycloalkyl, phenyl, trifluoromethyloxy, trifluoromethylthio, pyridyl, or pyridylthio. More preferred are halogen atoms, C₃₋₆ cycloalkyl, and pyridyl.

“C₂₋₆ alkenylcarbonyloxy” represented by R₁, R₂, R₃ and R₄ is optionally substituted, and substituents include halogen atoms, cyano, phenyl, trifluoromethyloxy, or trifluoromethylthio.

“C₂₋₆ alkynylcarbonyloxy” represented by R₁, R₂, R₃ and R₄ is optionally substituted, and substituents include halogen atoms, cyano, phenyl, trifluoromethyloxy, or trifluoromethylthio.

“C₁₋₅ alkyloxy” represented by R₁ and R₄ is optionally substituted, and substituents include halogen atoms; cyano; phenyl; trifluoromethyloxy; trifluoromethylthio; C₁₋₆ alkylcarbonyl optionally substituted by a halogen atom; or C₁₋₆ alkylcarbonyloxy optionally substituted by a halogen atom.

“C₂₋₆ alkenyloxy” represented by R₁ and R₄ is optionally substituted, and substituents include halogen atoms; cyano; phenyl; trifluoromethyloxy; trifluoromethylthio; C₁₋₆ alkylcarbonyl optionally substituted by a halogen atom; or C₁₋₆ alkylcarbonyloxy optionally substituted by a halogen atom.

“C₂₋₆ alkynyloxy” represented by R₁ and R₄ is optionally substituted, and substituents include halogen atoms; cyano; phenyl; trifluoromethyloxy; trifluoromethylthio; C₁₋₆ alkylcarbonyl optionally substituted by a halogen atom; or C₁₋₆ alkylcarbonyloxy optionally substituted by a halogen atom.

Phenyl in “benzyloxy” represented by R₁ and R₄ is optionally substituted, and substituents include halogen atoms; C₁₋₆ alkyloxy optionally substituted by a halogen atom; C₁₋₆ alkyl optionally substituted by a halogen atom; C₁₋₆ alkylcarbonyl optionally substituted by a halogen atom; C₁₋₆ alkylcarbonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylcarbonylamino optionally substituted by a halogen atom; C₁₋₆ alkylaminocarbonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylaminocarbonyl optionally substituted by a halogen atom; C₁₋₆ alkylsulfonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylthio optionally substituted by a halogen atom; C₁₋₆ alkylsulfinyl optionally substituted by a halogen atom; C₁₋₆ alkylsulfonyl optionally substituted by a halogen atom; cyano; formyl; azide; guanidyl; group —C(═NH)—NH₂; or group —CH═N—O—CH₃.

Phenyl in “benzoyloxy” represented by R₂, R₃ and R₄ is optionally substituted, and substituents include halogen atoms; C₁₋₆ alkyloxy optionally substituted by a halogen atom; C₁₋₆ alkyl optionally substituted by a halogen atom; C₁₋₆ alkylcarbonyl optionally substituted by a halogen atom; C₁₋₆ alkylcarbonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylcarbonylamino optionally substituted by a halogen atom; C₁₋₆ alkylaminocarbonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylaminocarbonyl optionally substituted by a halogen atom; C₁₋₆ alkylsulfonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylthio optionally substituted by a halogen atom; C₁₋₆ alkylsulfinyl optionally substituted by a halogen atom; C₁₋₆ alkylsulfonyl optionally substituted by a halogen atom; cyano; nitro; formyl; azide; guanidyl; group —C(═NH)—NH₂; or group —CH═N—O—CH₃. Preferred are halogen atoms, halogenated C₁₋₆ alkyl, cyano, and nitro.

Phenyl in “benzenesulfonyloxy” represented by R₃ and R₄ is optionally substituted, and substituents include halogen atoms; C₁₋₆ alkyloxy optionally substituted by a halogen atom; C₁₋₆ alkyl optionally substituted by a halogen atom; C₁₋₆ alkylcarbonyl optionally substituted by a halogen atom; C₁₋₆ alkylcarbonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylcarbonylamino optionally substituted by a halogen atom; C₁₋₆ alkylaminocarbonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylaminocarbonyl optionally substituted by a halogen atom; C₁₋₆ alkylsulfonyloxy optionally substituted by a halogen atom; C₁₋₆ alkylthio optionally substituted by a halogen atom; C₁₋₆ alkylsulfinyl optionally substituted by a halogen atom; C₁₋₆ alkylsulfonyl optionally substituted by a halogen atom; cyano; formyl; azide; guanidyl; group —C(═NH)—NH₂; or group —CH═N—O—CH₃.

“C₁₋₆ alkylsulfonyloxy” represented by R₂, R₃ and R₄ is optionally substituted, and substituents include halogen atoms, cyano, phenyl, trifluoromethyloxy, or trifluoromethylthio.

“C₁₋₆ alkyloxycarbonyloxy” represented by R₄ is optionally substituted, and substituents include halogen atoms, cyano, phenyl, trifluoromethyloxy, or trifluoromethylthio.

“C₁₋₆ alkylaminocarbonyloxy” represented by R₄ is optionally substituted, and substituents include halogen atoms, cyano, phenyl, trifluoromethyloxy, or trifluoromethylthio.

“Phenyl” represented by R₂′ and R₃′ and phenyl in “benzyl” represented by R₂′ and R₃′ are optionally substituted, and substituents include halogen atoms, C₁₋₄ alkyl, C₁₋₄ alkyloxy, nitro, cyano, formyl, trifluoromethyloxy, acetyl, or acetyloxy.

Examples of “saturated or unsaturated five- or six-membered heterocyclic ring” in saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy represented by R₃ and saturated or unsaturated five- or six-membered heterocyclic oxy, saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, and saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy represented by R₄ include thienyl, furyl, pyrrolyl, imidazolyl, pyrazolyl, isothiazoyl, isoxazolyl, thiazolyl, oxazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, tetrahydropyranyl, piperidinyl, piperazinyl, morpholinyl, tetrahydropyranyl, pyrazinyl, thienyl, or mannosyl. Preferred are pyridyl, furanyl, thiazolyl, imidazolyl, tetrahydropyranyl, and mannosyl. More specific examples thereof include (2- or 3-)thienyl, (2- or 3-)furyl, (1-, 2- or 3-)pyrrolyl, (1-, 2-, 4- or 5-)imidazolyl, (1-, 3-, 4- or 5-)pyrazolyl, (3-, 4- or 5-)isothiazoyl, (3-, 4- or 5-)isoxazolyl, (2-, 4- or 5-)thiazolyl, (2-, 4- or 5-)oxazolyl, (2-, 3- or 4-)pyridyl or, (2-, 4-, 5- or 6-)pyrimidinyl, (2- or 3-)pyrazinyl, (3- or 4-)pyridazinyl, (2-, 3- or 4-)tetrahydropyranyl, (1-, 2-, 3- or 4-)piperidinyl, (1-, 2- or 3-)piperazinyl, and (2-, 3- or 4-)morpholinyl, preferably 3-pyridyl, 2-furanyl, 5-thiazolyl, 1-imidazolyl, 5-imidazolyl, or 2-tetrahydropyranyl, more preferably 2-tetrahydropyranyl, 2-pyrazinyl, or 3-pyridyl, particularly preferably 3-pyridyl.

The heterocyclic ring in the saturated or unsaturated five- or six-membered heterocyclic carbonyloxy and saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy and thieno[3,2-b]pyridylcarbonyloxy and 1H-indolylcarbonyloxy represented by R₄ are optionally substituted, and substituents include halogen atoms, C₁₋₄ alkyl, C₁₋₄ alkyloxy, C₁₋₄ alkylthio, nitro, cyano, formyl, trifluoromethyloxy, trifluoromethyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, acetyl, acetyloxy, benzoyl, or C₁₋₄ alkyloxycarbonyl. Preferred are halogen atoms, C₁₋₄ alkyl, C₁₋₄ alkyloxy, and trifluoromethyl.

The heterocyclic ring in the saturated or unsaturated five- or six-membered heterocyclic oxy is optionally substituted, and substituents include hydroxyl, benzyloxy, a halogen atom, C₁₋₄ alkyl, C₁₋₄ alkyloxy, nitro, cyano, formyl, trifluoromethyloxy, trifluoromethyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, acetyl, or acetyloxy. Preferred are hydroxyl and benzyloxy.

Compounds of Formula (I)

In a preferred embodiment of the present invention, in compounds of formula (I), preferably, Het₁ represents 3-pyridyl.

Further, in a preferred embodiment of the present invention, in compounds of formula (I), R₁ represents hydroxyl, C₁₋₆ alkylcarbonyloxy, C₁₋₃ alkyloxy, or benzyloxy, or oxo in the absence of a hydrogen atom at the 13-position or the bond between 5-position and 13-position represents a double bond in the absence of R₁ and a hydrogen atom at the 5-position. More preferably, R₁ represents hydroxyl or C₁₋₆ alkylcarbonyloxy, or the bond between 5-position and 13-position represents a double bond in the absence of R₁ and a hydrogen atom at the 5-position. Still more preferably, R₁ represents hydroxyl.

In a preferred embodiment of the present invention, in the compounds of formula (I), R₂ represents hydroxyl, optionally substituted C₁₋₁₈ alkylcarbonyloxy, optionally substituted benzoyloxy, or C₁₋₃ alkylsulfonyloxy, more preferably optionally substituted C₁₋₁₈ alkylcarbonyloxy, still more preferably optionally substituted C₁₋₆ alkylcarbonyloxy, still more preferably optionally substituted cyclic C₃₋₆ alkylcarbonyloxy, particularly preferably cyclopropylcarbonyloxy.

In a preferred embodiment of the present invention, in the compounds of formula (I), R₃ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₁₈ alkylcarbonyloxy, optionally substituted benzoyloxy, C₁₋₆ alkylsulfonyloxy, optionally substituted benzenesulfonyloxy or saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy, more preferably optionally substituted C₁₋₆ alkylcarbonyloxy or C₁₋₆ alkylsulfonyloxy, still more preferably optionally substituted C₁₋₆ alkylcarbonyloxy, still more preferably optionally substituted cyclic C₃₋₆ alkylcarbonyloxy, particularly preferably cyclopropylcarbonyloxy.

In a preferred embodiment of the present invention, in the compounds of formula (I), R₂ and R₃ together represent —O—CR₂′R₃′—O— wherein R₂′ and R₃′, which may be the same or different, represent a hydrogen atom, C₁₋₆ alkyl, C₁₋₃ alkyloxy, C₂₋₃ alkenyl, benzyl, or optionally substituted phenyl, or R₂′ and R₃′ together represent oxo or C₂₋₆ alkylene. More preferably, R₂ and R₃ together represent —O—CR₂′R₃′-O— wherein R₂′ and R₃′, which may be the same or different, represent a hydrogen atom, C₁₋₆ alkyl, or optionally substituted phenyl, or R₂′ and R₃′ together represent oxo or C₂₋₆ alkylene.

In a preferred embodiment of the present invention, in the compounds of formula (I), R₄ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₁₈ alkylcarbonyloxy, C₂₋₆ alkenylcarbonyloxy, C₂₋₆ alkynyl carbonyloxy, C₁₋₆ alkylsulfonyloxy, benzenesulfonyloxy, benzyloxy, C₁₋₃ alkyloxy, C₁₋₃ alkyloxy-C₁₋₃ alkyloxy, C₁₋₃ alkylthio-C₁₋₃ alkyloxy, C₁₋₃ alkyloxy-C₁₋₃ alkyloxy, optionally substituted C₁₋₃ alkyloxycarbonyloxy, optionally substituted C₁₋₆ alkylaminocarbonyloxy, optionally substituted benzoyloxy, saturated or unsaturated five- or six-membered heterocyclic oxy, optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, optionally substituted thieno[3,2-b]pyridylcarbonyloxy, optionally substituted 1H-indolylcarbonyloxy, or saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy, or oxo in the absence of a hydrogen atom at the 7-position. More preferably, R₄ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₆ alkylcarbonyloxy, saturated or unsaturated five- or six-membered heterocyclic oxy, optionally substituted benzoyloxy, C₁₋₃ alkyloxy-C₁₋₃ alkyloxy, optionally substituted C₁₋₆ alkylaminocarbonyloxy, optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, optionally substituted thieno[3,2-b]pyridylcarbonyloxy, optionally substituted 1H-indolylcarbonyloxy, or saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy, or oxo in the absence of a hydrogen atom at the 7-position. Still more preferably, R₄ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₆ alkylcarbonyloxy, saturated or unsaturated five- or six-membered heterocyclic oxy, optionally substituted benzoyloxy, optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, or saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy. Still more preferably, R₄ represents a hydrogen atom, hydroxyl, optionally substituted cyclic C₃₋₆ alkylcarbonyloxy, or optionally substituted benzoyloxy, or oxo in the absence of a hydrogen atom at the 7-position.

In another preferred embodiment of the present invention, in the compounds of formula (I), Het₁ represents 3-pyridyl, R₁ represents hydroxyl or C₁₋₆ alkylcarbonyloxy, or the bond between 5-position and 13-position represents a double bond in the absence of R₁ and a hydrogen atom at the 5-position, R₂ represents optionally substituted C₁₋₆ alkylcarbonyloxy, R₃ represents optionally substituted C₁₋₆ alkylcarbonyloxy or C₁₋₆ alkylsulfonyloxy, or R₂ and R₃ together represent —O—CR₂′R₃′—O— wherein R₂′ and R₃′, which may be the same or different, represent a hydrogen atom, C₁₋₆ alkyl, or optionally substituted phenyl, or R₂′ and R₃′ together represent oxo or C₂₋₆ alkylene, and R₄ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₆ alkylcarbonyloxy, saturated or unsaturated five- or six-membered heterocyclic oxy, optionally substituted benzoyloxy, C₁₋₃ alkyloxy-C₁₋₃ alkyloxy, optionally substituted C₁₋₆ alkylaminocarbonyloxy, optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, optionally substituted thieno[3,2-b]pyridylcarbonyloxy, optionally substituted 1H-indolylcarbonyloxy, saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy, or oxo in the absence of a hydrogen atom at the 7-position.

In still another preferred embodiment of the present invention, in the compounds of formula (I), Het₁ represents 3-pyridyl, R₁ represents hydroxyl, R₂ represents optionally substituted C₁₋₆ alkylcarbonyloxy, and R₃ represents optionally substituted C₁₋₆ alkylcarbonyloxy or C₁₋₆ alkylsulfonyloxy, and R₄ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₆ alkylcarbonyloxy, saturated or unsaturated five- or six-membered heterocyclic oxy, optionally substituted benzoyloxy, C₁₋₃ alkyloxy-C₁₋₃ alkyloxy, optionally substituted C₁₋₆ alkylaminocarbonyloxy, optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, optionally substituted thieno[3,2-b]pyridylcarbonyloxy, optionally substituted 1H-indolylcarbonyloxy, saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy, or oxo in the absence of a hydrogen atom at the 7-position,

In a further preferred embodiment of the present invention, in the compounds of formula (I), Het₁ represents 3-pyridyl, R₁ represents hydroxyl, R₂ represents optionally substituted C₁₋₆ alkylcarbonyloxy, R₃ represents optionally substituted C₁₋₆ alkylcarbonyloxy or C₁₋₆ alkylsulfonyloxy, and R₄ represents a hydrogen atom, hydroxyl, optionally substituted C₁₋₆ alkylcarbonyloxy, optionally substituted benzoyloxy, saturated or unsaturated five- or six-membered heterocyclic oxy, optionally substituted saturated or unsaturated five- or six-membered heterocyclic carbonyloxy, or saturated or unsaturated five- or six-membered heterocyclic thiocarbonyloxy.

In another preferred embodiment of the present invention, in the compounds of formula (I), Het₁ represents 3-pyridyl, R₁ represents hydroxyl, and R₂ and R₃ represent optionally substituted cyclic C₃₋₆ alkylcarbonyloxy, R₄ represents a hydrogen atom, hydroxyl, optionally substituted cyclic C₃₋₆ alkylcarbonyloxy, optionally substituted benzoyloxy, or oxo in the absence of a hydrogen atom at the 7-position.

In still another preferred embodiment of the present invention, in the compounds of formula (I), Het₁ represents 3-pyridyl, R₁ represents hydroxyl, R₂ and R₃ represent cyclopropylcarbonyloxy, and R₄ preferably represents hydroxyl.

Agriculturally and horticulturally acceptable salts in the compounds of formula (I) include, for example, acid addition salts such as hydrochlorides, nitrates, sulfates, phosphates, or acetates.

Specific examples of pyripyropene derivatives of formula (I) or salts thereof preferable as the active ingredient of the composition according to the present invention include compounds shown in Tables 1 to 14 below. The pyripyropene derivatives shown in Tables 1 to 14 can be produced as described in Japanese Patent No. 2993767 (Japanese Patent Application Laid-Open No. 360895/1992) and WO 2006/129714. In the following tables, H(═) means that the bond between 5-position and 13-position represents a double bond in the absence of R₁ and a hydrogen atom at the 5-position.

TABLE 1 Compound No. R₁ R₂ R₃ R₄ Het₁ 1 OH OCOCH₃ OCOCH₃ OCOCH₂CH₃ 3-pyridyl 2 OH OCOCH₃ OCOCH₃ OCOCH₂CF₃ 3-pyridyl 3 OH OCOCH₃ OCOCH₃ OCOCH₂OCH₃ 3-pyridyl 4 OH OCOCH₃ OCOCH₃ OCOCH₂OCOCH₃ 3-pyridyl 5 OH OCOCH₃ OCOCH₃ OCOCH₂CH₂CN 3-pyridyl 6 OH OCOCH₃ OCOCH₃ OCO(CH₂)₂CH₃ 3-pyridyl 7 OH OCOCH₃ OCOCH₃ OCO(CH₂)₃CH₃ 3-pyridyl 8 OH OCOCH₃ OCOCH₃ OCO(CH₂)₄CH₃ 3-pyridyl 9 OH OCOCH₃ OCOCH₃ OCO(CH₂)₅CH₃ 3-pyridyl 10 OH OCOCH₃ OCOCH₃ OCO(CH₂)₆CH₃ 3-pyridyl 11 OH OCOCH₃ OCOCH₃ OCO(CH₂)₁₆CH₃ 3-pyridyl 12 OH OCOCH₃ OCOCH₃ OCOCH(CH₃)₂ 3-pyridyl 13 OH OCOCH₃ OCOCH₃ OCOC(CH₃)₃ 3-pyridyl 14 OH OCOCH₃ OCOCH₃ OCOCH₂CH(CH₃)₂ 3-pyridyl 15 OH OCOCH₃ OCOCH₃ OCO(CH₂)₂CH(CH₃)₂ 3-pyridyl 16 OH OCOCH₃ OCOCH₃ OCO-trans-CH═CHCH₂CH₃ 3-pyridyl 17 OH OCOCH₃ OCOCH₃ OCOCH₂C≡CCH₃ 3-pyridyl 18 OH OCOCH₃ OCOCH₃ OCOC≡CCH₂CH₃ 3-pyridyl 19 OH OCOCH₃ OCOCH₃ OCO(CH₂)₂C≡CH 3-pyridyl 20 OH OCOCH₃ OCOCH₃ OCO(CH₂)₂CH═CH₂ 3-pyridyl

TABLE 2 Compound No. R₁ R₂ R₃ R₄ Het₁ 21 OH OCOCH₃ OCOCH₃ OCOCH₂C₆H₅ 3-pyridyl 22 OH OCOCH₃ OCOCH₃ OCO(CH₂)₂C₆H₅ 3-pyridyl 23 OH OCOCH₃ OCOCH₃ OCOC₆H₅ 3-pyridyl 24 OH OCOCH₃ OCOCH₃ OCO-(4-Br—C₆H₄) 3-pyridyl 25 OH OCOCH₃ OCOCH₃ OCO-(4-N₃—C₆H₄) 3-pyridyl 26 OH OCOCH₃ OCOCH₃ OCO-(4-OCF₃—C₆H₄) 3-pyridyl 27 OH OCOCH₃ OCOCH₃ OCO-(4-SO₂CF₃—C₆H₄) 3-pyridyl 28 OH OCOCH₃ OCOCH₃ OCO-(3-pyridyl) 3-pyridyl 29 OH OCOCH₃ OCOCH₃ OCO-(2-Cl-3-pyridyl) 3-pyridyl 30 OH OCOCH₃ OCOCH₃ OCO-(2-franyl) 3-pyridyl 31 OH OCOCH₃ OCOCH₃ OCO-(2-thiazolyl) 3-pyridyl 32 OH OCOCH₃ OCOCH₃ OCO-(2-Cl-5-thiazolyl) 3-pyridyl 33 OH OCOCH₃ OCOCH₃ OCO-(5-imidazolyl) 3-pyridyl 34 OH OCOCH₃ OCOCH₃ OCS-(1-imidazolyl) 3-pyridyl 35 OH OCOCH₃ OCOCH₃ OCOOCH₂C₆H₅ 3-pyridyl 36 OH OCOCH₃ OCOCH₃ OSO₂CH₃ 3-pyridyl 37 OH OCOCH₃ OCOCH₃ OSO₂C₆H₅ 3-pyridyl 38 OH OCOCH₃ OCOCH₃ OCONHCH₂CH₃ 3-pyridyl 39 OH OCOCH₃ OCOCH₃ OCONH(CH₂)₂CH₃ 3-pyridyl 40 OH OCOCH₃ OCOCH₃ OCONHCH₂C₆H₅ 3-pyridyl

TABLE 3 Compound No. R₁ R₂ R₃ R₄ Het₁ 41 OH OCOCH₃ OCOCH₃ OCH₂C₆H₅ 3-pyridyl 42 OH OCOCH₃ OCOCH₃ OCH₂SCH₃ 3-pyridyl 43 OH OCOCH₃ OCOCH₃ OCH₂OCH₃ 3-pyridyl 44 OH OCOCH₃ OCOCH₃ OCH₂OCH₂CH₂OCH₃ 3-pyridyl 45 OH OCOCH₃ OCOCH₃ O-(2-tetrahydropyranyl) 3-pyridyl 46 OH OCOCH₃ OCOCH₃ O-(tetra-O-benzyl-mannosyl) 3-pyridyl 47 OH OCOCH₃ OCOCH₃ H 3-pyridyl 48 OH OCOCH₃ OCOCH₃ OCO—c-C₃H₅ 3-pyridyl 49 OH OCOCH₃ OCOCH₃ OH 3-pyridyl 50 OH OCOCH₃ OCOCH₃ ═O 3-pyridyl 51 OH OCOCH₃ OCOCH₂CH₃ OCOCH₃ 3-pyridyl 52 OH OCOCH₃ OCOCH₂CH₃ OCOCH₂CH₃ 3-pyridyl 53 OH OCOCH₃ OCOCH₂CH₃ H 3-pyridyl 54 OH OCOCH₃ OCO(CH₂)₂CH₃ OCOCH₃ 3-pyridyl 55 OH OCOCH₃ OCO(CH₂)₂CH₃ OH 3-pyridyl 56 OH OCOCH₃ OCO(CH₂)₃CH₃ OCOCH₃ 3-pyridyl 57 OH OCOCH₃ OCOCH(CH₃)₂ OCOCH₃ 3-pyridyl 58 OH OCOCH₃ OCOC₆H₅ OCOCH₃ 3-pyridyl 59 OH OCOCH₃ OCOC₆H₅ OH 3-pyridyl 60 OH OCOCH₃ OCS- OCOCH₃ 3-pyridyl (1-imidazoyl)

TABLE 4 Compound No. R₁ R₂ R₃ R₄ Het₁ 61 OH OCOCH₃ OSO₂CH₃ OCOCH₃ 3-pyridyl 62 OH OCOCH₃ OSO₂CH₃ OCO(CH₂)₃CH₃ 3-pyridyl 63 OH OCOCH₃ OSO₂C₆H₅ OCOCH₃ 3-pyridyl 64 OH OCOCH₃ OSO₂CH₂CH₃ OCOCH₃ 3-pyridyl 65 OH OCOCH₃ OSO₂CH₂CH₂CH₃ OCOCH₃ 3-pyridyl 66 OH OCOCH₃ OSO₂CH₂CH₃ OH 3-pyridyl 67 OH OCOCH₃ OSO₂CH₂CH₂CH₃ OH 3-pyridyl 68 OH OCOCH₃ OH OH 3-pyridyl 69 OH OCOCH₃ OH OCOCH₃ 3-pyridyl 70 OH OCOCH₃ H H 3-pyridyl 71 OH OCOCH₃ H OCOCH₂CH₃ 3-pyridyl 72 OH OCOCH₂CH₃ OCOCH₃ OCOCH₃ 3-pyridyl 73 OH OCOCH₂CH₃ OCOCH₂CH₃ OH 3-pyridyl 74 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₃ 3-pyridyl 75 OH OCOCH₂CH₃ OCOCH₃ OCOCH₂CH₃ 3-pyridyl 76 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 3-pyridyl 77 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOC₆H₅ 3-pyridyl 78 OH OCOCH₂CH₃ OCOCH₂CH₃ H 3-pyridyl 79 OH OCOCH₂CH₃ H H 3-pyridyl 80 OH OCO(CH₂)₂CH₃ OCOCH₃ OCOCH₃ 3-pyridyl

TABLE 5 Compound No. R₁ R₂ R₃ R₄ Het₁ 81 OH OCO(CH₂)₂CH₃ OCO(CH₂)₂CH₃ OH 3-pyridyl 82 OH OCO(CH₂)₂CH₃ OCO(CH₂)₂CH₃ OCO(CH₂)₂CH₃ 3-pyridyl 83 OH OCO(CH₂)₂CH₃ OCO(CH₂)₂CH₃ OCOCH₃ 3-pyridyl 84 OH OCO(CH₂)₃CH₃ OCOCH₃ OCOCH₃ 3-pyridyl 85 OH OCO(CH₂)₃CH₃ OCO(CH₂)₃CH₃ OCO(CH₂)₃CH₃ 3-pyridyl 86 OH OCO(CH₂)₃CH₃ OSO₂CH₃ OCO(CH₂)₃CH₃ 3-pyridyl 87 OH OCO(CH₂)₃CH₃ OSO₂CH₃ OH 3-pyridyl 88 OH OCO(CH₂)₁₆CH₃ OCO(CH₂)₁₆CH₃ OCO(CH₂)₁₆CH₃ 3-pyridyl 89 OH OCOCH(CH₃)₂ OCOCH₃ OCOCH₃ 3-pyridyl 90 OH OCOCH(CH₃)₂ OCOCH(CH₃)₂ OCOCH(CH₃)₂ 3-pyridyl 91 OH OCOC(CH₃)₃ OCOC(CH₃)₃ OCOC(CH₃)₃ 3-pyridyl 92 OH OCOC₆H₅ OCOCH₃ OCOCH₃ 3-pyridyl 93 OH OCOC₆H₅ OSO₂CH₃ OH 3-pyridyl 94 OH OCOC₆H₅ OSO₂CH₃ OCOCH₃ 3-pyridyl 95 OH OCOC₆H₅ OSO₂CH₃ OCO(CH₂)₃CH₃ 3-pyridyl 96 OH OCO—(4-Br—C₆H₄) OCO—(4-Br—C₆H₄) OCO—(4-Br—C₆H₄) 3-pyridyl 97 OH OCO—(4-N₃—C₆H₄) OSO₂CH₃ OCOCH₃ 3-pyridyl 98 OH OSO₂CH₃ OSO₂CH₃ OH 3-pyridyl 99 OH OSO₂CH₃ OSO₂CH₃ OSO₂CH₃ 3-pyridyl 100 OH OSO₂CH₃ OSO₂CH₃ OCOCH₃ 3-pyridyl

TABLE 6 Compound No. R₁ R₂ R₃ R₄ Het₁ 101 OH OSO₂CH₃ OH OH 3-pyridyl 102 OH OH OH OH 3-pyridyl 103 OH OH OH OCOCH₃ 3-pyridyl 104 OH OH OH OCO(CH₂)₃CH₃ 3-pyridyl 105 OH OH OH OCH₂OCH₂CH₂OCH₃ 3-pyridyl 106 OH OH OCOCH₃ OH 3-pyridyl 107 OH OH OCOCH₂CH₃ OH 3-pyridyl 108 OH OH OCO(CH₂)₂CH₃ OH 3-pyridyl 109 OH OH OCO(CH₂)₃CH₃ OH 3-pyridyl 110 OH OH OCOCH(CH₃)₂ OH 3-pyridyl 111 OH OH OSO₂CH₃ OH 3-pyridyl 112 OH OH OSO₂CH₂CH₃ OH 3-pyridyl 113 OH OH OSO₂CH₂CH₂CH₃ OH 3-pyridyl 114 OH OH OSO₂CH(CH₃)₂ OH 3-pyridyl 115 OH OH OSO₂C₆H₅ OH 3-pyridyl 116 OH OH OSO₂—(4-CH₃—C₆H₄) OH 3-pyridyl 117 OH OH OCO—(4-Br—C₆H₄) OH 3-pyridyl 118 OH OH OCO(CH₂)₃CH₃ OCO(CH₂)₃CH₃ 3-pyridyl 119 OH OH OSO₂CH₃ OSO₂CH₃ 3-pyridyl 120 OH OH OSO₂CH₃ OCOCH₃ 3-pyridyl

TABLE 7 Compound No. R₁ R₂ R₃ R₄ Het₁ 121 OH OH OSO₂CH₃ OCOCH₃ 3-pyridyl 122 OH OH OSO₂CH₃ OCO(CH₂)₃CH₃ 3-pyridyl 123 OH OH OSO₂C₆H₅ OCOCH₃ 3-pyridyl 124 OH OH OSO₂C₆H₅ OSO₂C₆H₅ 3-pyridyl 125 OH —O—CH(CH₃)—O— OCO(CH₂)₃CH₃ 3-pyridyl 126 OH —O—CH(C₂H₅)—O— OH 3-pyridyl 127 OH —O—CH(C₂H₅)—O— OCO(CH₂)₃CH₃ 3-pyridyl 128 OH —O—CH(CH═CH₂)—O— OH 3-pyridyl 129 OH —O—CH(CH═CH₂)—O— OCO(CH₂)₃CH₃ 3-pyridyl 130 OH —O—CH(CH(CH₃)₂)—O— OH 3-pyridyl 131 OH —O—CH(CH(CH₃)₂)—O— OCO(CH₂)₃CH₃ 3-pyridyl 132 OH —O—CH(OCH₃)—O— OH 3-pyridyl 142 OH —O—CH(OCH₃)—O— OCO(CH₂)₃CH₃ 3-pyridyl 133 OH —O—CH(C(CH₃)₃)—O— OCO(CH₂)₃CH₃ 3-pyridyl 134 OH —O—CH(CH₂C₆H₅)—O— OH 3-pyridyl 135 OH —O—C(CH₃)₂—O— OH 3-pyridyl 136 OH —O—C(CH₃)₂—O— OCOCH₃ 3-pyridyl 137 OH —O—C(CH₃)₂—O— OCO(CH₂)₃CH₃ 3-pyridyl 138 OH —O—C(CH₃)(C₆H₅)—O— OH 3-pyridyl 139 OH —O—C(CH₃)(C₆H₅)—O— OCO(CH₂)₃CH₃ 3-pyridyl 140 OH —O—CH(C₆H₅)—O— OH 3-pyridyl

TABLE 8 Compound No. R₁ R₂ R₃ R₄ Het₁ 141 OH —O—CH(C₆H₅)—O— OCOCH₃ 3-pyridyl 143 OH —O—CH(C₆H₅)—O— OCO(CH₂)₃CH₃ 3-pyridyl 144 OH —O—CH(3-CH₃—C₆H₄)—O— OH 3-pyridyl 145 OH —O—CH(3-CH₃—C₆H₄)—O— OCO(CH₂)₃CH₃ 3-pyridyl 146 OH —O—CH(2-CH₃—C₆H₄)—O— OH 3-pyridyl 147 OH —O—CH(4-CH₃—C₆H₄)—O— OCO(CH₂)₃CH₃ 3-pyridyl 148 OH —O—CH(3-F—C₆H₄)—O— OH 3-pyridyl 149 OH —O—CH(2-F—C₆H₄)—O— OCO(CH₂)₃CH₃ 3-pyridyl 150 OH —O—CH(4-F—C₆H₄)—O— OCO(CH₂)₃CH₃ 3-pyridyl 151 OH —O—CH(4-NO₂—C₆H₄)—O— OH 3-pyridyl 152 OH —O—CH(4-NO₂—C₆H₄)—O— OCO(CH₂)₃CH₃ 3-pyridyl 153 OH —O—CH(4-OCH₃—C₆H₄)—O— OH 3-pyridyl 154 OH —O—CH(4-OCH₃—C₆H₄)—O— OCO(CH₂)₃CH₃ 3-pyridyl 155 OH —O—C(spiro-c-C₅H₈)—O— OH 3-pyridyl 156 OH —O—C(spiro-c-C₅H₈)—O— OCO(CH₂)₃CH₃ 3-pyridyl 157 OH —O—C(spiro-c-C₆H₁₀)—O— OH 3-pyridyl 158 OH —O—C(spiro-c-C₆H₁₀)—O— OCO(CH₂)₃CH₃ 3-pyridyl 159 OH —O—CO—O— OH 3-pyridyl 160 OH —O—CO—O— OCO-1-imidazolyl 3-pyridyl

TABLE 9 Compound No. R₁ R₂ R₃ R₄ Het₁ 161 OH —O—CO—O— OCO(CH₂)₃CH₃ 3-pyridyl 162 OCOCH₃ OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl 163 OCOCH₃ OCOCH₃ OCOCH₃ OH 3-pyridyl 164 OCOCH₃ OCOCH₃ OCO(CH₂)₂CH₃ OCOCH₃ 3-pyridyl 165 OCOCH₃ OH OH OCOCH₃ 3-pyridyl 166 OCOCH₃ OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 3-pyridyl 167 OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 3-pyridyl 168 OCOCH₂CH₃ OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl 169 OCO(CH₂)₃CH₃ OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl 170 OCO(CH₂)₃CH₃ OCOCH₃ OCOCH₃ OCO(CH₂)₃CH₃ 3-pyridyl 171 OCO(CH₂)₂CH₃ OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl 172 OCH₃ OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl 173 H(═) OCOCH₃ OSO₂CH₃ OH 3-pyridyl 174 H(═) OCOC₆H₅ OSO₂CH₃ OCOCH₃ 3-pyridyl 175 H(═) OH OH OCOCH₃ 3-pyridyl 176 H(═) OCOCH₃ OCOCH₃ ═O 3-pyridyl 177 H(═) —O—CH(C₆H₅)—O— OCOCH₃ 3-pyridyl 178 H(═) —O—CH(CH(CH₃)₂)—O— OH 3-pyridyl 179 H(═) —O—CH(4-NO₂—C₆H₄)—O— OH 3-pyridyl 180 H(═) OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl

TABLE 10 Compound No. R₁ R₂ R₃ R₄ Het₁ 181 H(═) OH OH OH 3-pyridyl 182 H(═) OCOCH₃ OCOCH₃ OH 3-pyridyl 183 H(═) OCOCH₃ OCOCH₃ OCH₂SCH₃ 3-pyridyl 184 H(═) OCOCH₃ OCOCH₃ OCH₂OCH₃ 3-pyridyl 185 H(═) OCOCH₃ OCOCH₃ OCO(CH₂)₃CH₃ 3-pyridyl 186 H(═) OCOCH₃ OCOCH₃ OCO(CH₂)₂Ph 3-pyridyl 187 H(═) OCOCH₃ OSO₂CH₃ OCOCH₃ 3-pyridyl 188 H(═) OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 3-pyridyl 189 H(═) OCOCH₂CH₃ OCOCH₂CH₃ OH 3-pyridyl 190 H(═) OH OSO₂CH₃ OH 3-pyridyl 191 H(═) OH OH OCO(CH₂)₃CH₃ 3-pyridyl 192 H(═) —O—C(CH₃)₂—O— OH 3-pyridyl 193 H(═) —O—C(CH₃)₂—O— OCO(CH₂)₃CH₃ 3-pyridyl 194 H(═) —O—CH(C₆H₅)—O— OH 3-pyridyl 195 H(═) —O—CH(C₆H₅)—O— OCO(CH₂)₃CH₃ 3-pyridyl 196 H(═) —O—CH(4-OCH₃—C₆H₄)—O— OH 3-pyridyl 197 H(═) —O—CH(C₂H₅)—O— OH 3-pyridyl 198 H(═) —O—CH(C(CH₃)₂)—O— OH 3-pyridyl 199 H(═) —O—CH(CH₂C₆H₅)—O— OH 3-pyridyl 200 ═O OH OH OH 3-pyridyl

TABLE 11 Compound No. R₁ R₂ R₃ R₄ Het₁ 201 ═O OCOCH₃ OCOCH₃ ═O 3-pyridyl 202 ═O OCOCH₃ OCOCH₃ OH 3-pyridyl 203 ═O OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl 204 ═O OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 3-pyridyl 205 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-pyridyl) 3-pyridyl 206 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH(CH₃)₂ 3-pyridyl 207 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOC(CH₃)₃ 3-pyridyl 208 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(4-CF₃—C₆H₄) 3-pyridyl 209 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(1-imidazolyl) 3-pyridyl 210 OH OCOCH₂CH₃ OCOCH₂CH₃ OCONH(CH₂)₂CH₃ 3-pyridyl 211 OH OCOCH₂CH₃ OCOCH₂CH₃ O-(2-tetrahydropyranyl) 3-pyridyl 212 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(6-Cl-3-pyridyl) 3-pyridyl 213 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO—c-C₃H₅ 3-pyridyl 214 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO—c-C₄H₇ 3-pyridyl 215 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH═CH 3-pyridyl 216 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(4-pyridyl) 3-pyridyl 217 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(2-pyridyl) 3-pyridyl 218 OH OCO—c-C₃H₅ OCO—c-C₃H₅ OCO—c-C₃H₅ 3-pyridyl 219 OH OCO—c-C₄H₇ OCO—c-C₄H₇ OCO—c-C₄H₇ 3-pyridyl 220 OH OCOC₆H₅ OCOC₆H₅ OCOC₆H₅ 3-pyridyl

TABLE 12 Compound No. R₁ R₂ R₃ R₄ Het₁ 221 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(6-CF₃-3-pyridyl) 3-pyridyl 222 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(4-CF₃-3-pyridyl) 3-pyridyl 223 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CF₃ 3-pyridyl 224 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CF₃ 3-pyridyl 225 ═O OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 6-Cl-3-pyridyl 226 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂CH₃ 6-Cl-3-pyridyl 227 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-F-4-pyridyl) 3-pyridyl 228 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-Cl-4-pyridyl) 3-pyridyl 229 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-CH₃-2-pyridyl) 3-pyridyl 230 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-COC₆H₅-2-pyridyl) 3-pyridyl 231 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-OCH₂CH₂CH₃-2-pyridyl) 3-pyridyl 232 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(6-F-3-pyridyl) 3-pyridyl 233 OH OCO—c-C₅H₉ OCO—c-C₅H₉ OCO—c-C₅H₉ 3-pyridyl 234 OH OCO—c-C₆H₁₁ OCO—c-C₆H₁₁ OCO—c-C₆H₁₁ 3-pyridyl 235 OH OCOCH₂CN OCOCH₂CN OCOCH₂CN 3-pyridyl 236 OCOCH₂—c-C₃H₅ OCOCH₂—c-C₃H₅ OCOCH₂—c-C₃H₅ OCOCH₂—c-C₃H₅ 3-pyridyl 237 OH OCOCH₂—c-C₃H₅ OCOCH₂—c-C₃H₅ OCOCH₂—c-C₃H₅ 3-pyridyl 238 OH OCO-(1-CH₃-2,2-F₂—c-C₃H₂) OCO-(1-CH₃-2,2-F₂—c-C₃H₂) OCO-(1-CH₃-2,2-F₂—c-C₃H₂) 3-pyridyl 239 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(4-CH₃-3-pyridyl) 3-pyridyl 240 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(4-Cl-3-pyridyl) 3-pyridyl

TABLE 13 Compound No. R₁ R₂ R₃ R₄ Het₁ 241 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(4-COOCH₃-3-pyridyl) 3-pyridyl 242 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-[5-(CF₃)-thieno[3,2-b]-pyridin-6-yl] 3-pyridyl 243 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(2-CN—C₆H₄) 3-pyridyl 244 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(2-CF₃—C₆H₄) 3-pyridyl 245 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(2-F—C₆H₄) 3-pyridyl 246 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(2-NO₂—C₆H₄) 3-pyridyl 247 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(2-Cl-3-pyridyl) 3-pyridyl 248 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO(2-Cl-6-CH₃-3-pyridyl) 3-pyridyl 249 OH OCOCH₂CH₃ OCOCH₂CH₃ OCH₂OCH₃ 3-pyridyl 250 OH OCO-(2,2-F₂—c-C₃H₃) OCO-(2,2-F₂—c-C₃H₃) OCO-(2,2-F₂—c-C₃H₃) 3-pyridyl 251 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-SC(CH₃)₃-2-pyridyl) 3-pyridyl 252 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3,5-2F-2-pyridyl) 3-pyridyl 253 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-2-pyrazinyl 3-pyridyl 254 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-4-thiazolyl 3-pyridyl 255 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-Cl-2-thienyl) 3-pyridyl 256 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(6-CH₃-3-pyridyl) 3-pyridyl 257 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(6-Cl-2-pyridyl) 3-pyridyl 258 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(6-F-2-pyridyl) 3-pyridyl 259 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(1-CH₃-1H-indolyl) 3-pyridyl 260 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO-(3-Cl-2-pyridyl) 3-pyridyl

TABLE 14 Compound No. R₁ R₂ R₃ R₄ Het₁ 261 OH OCO—c-C₃H₅ OCO—c-C₃H₅ OH 3-pyridyl 262 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO—(2-F-3-pyridyl) 3-pyridyl 263 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO—(4-CN—C₆H₄) 3-pyridyl 264 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO—(3-CN—C₆H₄) 3-pyridyl 265 OH OCOCH₂CH₃ OCOCH₂CH₃ OCO—(3-CF₃—C₆H₄) 3-pyridyl 266 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂(2-pyridyl) 3-pyridyl 267 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂(3-pyridyl) 3-pyridyl 268 OH OCOCH₂CH₃ OCOCH₂CH₃ OCOCH₂S(4-pyridyl) 3-pyridyl 269 OH OCO—c-C₃H₅ OCO—c-C₃H₅ OCO—(2-CN—C₆H₄) 3-pyridyl 270 OH OCO—c-C₃H₅ OCO—c-C₃H₅ OCO(4-CF₃-3-pyridyl) 3-pyridyl 271 OH OCO—c-C₃H₅ OCO—c-C₃H₅ OCO(3-Cl-2-pyridyl) 3-pyridyl 272 OH —O—CH(C₆H₅)—O— ═O 3-pyridyl 273 OH —O—CH(4-OCH₃—C₆H₄)—O— ═O 3-pyridyl 274 OCO(CH₂)₃CH₃ —O—CO—O— OCO(CH₂)₃CH₃ 3-pyridyl 275 OCOCH₃ —O—CH(C₆H₅)—O— OCOCH₃ 3-pyridyl 276 ═O —O—CH(4-OCH₃—C₆H₄)—O— OH 3-pyridyl 277 OH OCO—c-C₃H₅ OCO—c-C₃H₅ ═O 3-pyridyl 278 OH OCO—c-C₃H₅ OCO—c-C₃H₅ H 3-pyridyl 279 OH OCOCH₃ OCOCH₃ OCOCH₃ 3-pyridyl

Other pest control agents mixable into the pyripyropene derivatives in the present invention include, for example, fungicides, miticides, herbicides, or plant growth-regulating agents. Specific examples of such agents are described, for example, in The Pesticide Manual, the 13th edition, published by The British Crop Protection Council; and SHIBUYA INDEX, the 10th edition, 2005, published by SHIBUYA INDEX RESEARCH GROUP.

Preferred other pest control agents mixable into the pyripyropene derivatives include insecticide, for example, acephate, dichlorvos, EPN, fenitrothion, fenamifos, prothiofos, profenofos, pyraclofos, chlorpyrifos-methyl, chlorfenvinphos, demeton, ethion, malathion, coumaphos, isoxathion, fenthion, diazinon, thiodicarb, aldicarb, oxamyl, propoxur, carbaryl, fenobucarb, ethiofencarb, fenothiocarb, pirimicarb, carbofuran, carbosulfan, furathiocarb, hyquincarb, alanycarb, methomyl, benfuracarb, cartap, thiocyclam, bensultap, dicofol, tetradifon, acrinathrin, bifenthrin, cycloprothrin, cyfluthrin, dimefluthrin, empenthrin, fenfluthrin, fenpropathrin, imiprothrin, metofluthrin, permethrin, phenothrin, resmethrin, tefluthrin, tetramethrin, tralomethrin, transfluthrin, cypermethrin, deltamethrin, cyhalothrin, fenvalerate, fluvalinate, ethofenprox, flufenprox, halfenprox, silafluofen, cyromazine, diflubenzuron, teflubenzuron, flucycloxuron, flufenoxuron, hexaflumuron, lufenuron, novaluron, penfluoron, triflumuron, chlorfluazuron, diafenthiuron, methoprene, fenoxycarb, pyriproxyfen, halofenozide, tebufenozide, methoxyfenozide, chromafenozide, dicyclanil, buprofezin, hexythiazox, amitraz, chlordimeform, pyridaben, fenpyroxymate, flufenerim, pyrimidifen, tebufenpyrad, tolfenpyrad, fluacrypyrim, acequinocyl, cyflumetofen, flubendiamide, ethiprole, fipronil, ethoxazole, imidacloprid, nitenpyram, clothianidin, acetamiprid, dinotefuran, thiacloprid, thiamethoxam, pymetrozine, bifenazate, spirodiclofen, spiromesifen, flonicamid, chlorfenapyr, pyriproxyfene, indoxacarb, pyridalyl, spinosad, avermectin, milbemycin, azadirachtin, nicotine, rotenone, BT formulations, insect pathological viral agents, emamectinbenzoate, spinetoram, pyrifluquinazon, chiorantraniliprole, cyenopyrafen, spirotetramat, lepimectin, metaflumizone, pyrafluprole, pyriprole, dimefluthrin, fenazaflor, hydramethylnon, triazamate, and compounds of formula (II) described in WO 2006/013896:

wherein R₁₀₁ represents COR₁₀₄ or COOR₁₀₅ wherein R₁₀₄ and R₁₀₅ represent C₁₋₄ alkyl, preferably COR₁₀₄,

R₁₀₂ represents C₁₋₄ alkyl,

R₁₀₃ represents C₁₋₄ alkyl,

X₁₀₁ and X₁₀₂ each independently represent a hydrogen atom or C₁₋₄ alkyl optionally substituted by a halogen atom, preferably X₁₀₁ represents a hydrogen atom while X₁₀₂ represents C₁₋₄ alkyl,

provided that X₁₀₁ and X₁₀₂ do not simultaneously represent a hydrogen atom, and

Y₁₀₁, Y₁₀₂, Y₁₀₃, Y₁₀₄/and Y₁₀₅ each independently represent a hydrogen atom, C₁₋₈ alkyloxy, wherein the C₁₋₈ alkyloxy group is substituted by one or more halogen atoms, which may be the same or different, and/or C₁₋₄ alkyloxy substituted by one or more halogen atoms, which may be the same or different, or a halogen atom, preferably Y₁₀₁ represents a hydrogen atom or a halogen atom, Y₁₀₂ and Y₁₀₃ represent C₁₋₄ alkyloxy substituted by a halogen atom, and Y₁₀₄ and Y_(ios) represent a hydrogen atom,

provided that at least one of Y₁₀₁, Y₁₀₂, Y₁₀₃, Y₁₀₄, and Y₁₀₅ represents C₁₋₈ alkyloxy, wherein the C₁₋₈ alkyloxy group is substituted by one or more halogen atoms, which may be the same or different, and/or C₁₋₄ alkyloxy substituted by one or more halogen atoms which may be the same or different,

or two adjacent groups of Y₁₀₁, Y₁₀₂, Y₁₀₃, Y₁₀₄, and Y₁₀₅ together may represent —O—(CH₂)_(n)—O—, wherein n is 1 or 2, substituted by one or more halogen atoms.

Examples of further preferred other pest control agents mixable into the pyripyropene derivatives include flonicamid, acetamiprid, fipronil, imidacloprid, chlorfenapyr, clothianidin, thiamethoxam, dinotefuran, and compounds of compound Nos. A120, A190, A257, and A648 included in the compounds of formula (II) wherein R₁₀₁ represents methoxycarbonyl, R₁₀₂ represents methyl, R₁₀₃ represents ethyl, X₁₀₁, Y₁₀₄, and Y₁₀₅ represent a hydrogen atom, X₁₀₂ represents methyl, and Y₁₀₁, Y₁₀₂, and Y₁₀₃ represent a group shown in Table 15 below:

TABLE 15 Compound No. Y₁₀₁ Y₁₀₂ Y₁₀₃ A120 H H OCF₃ A190 H H OCF₂CHF₂ A257 Cl H OCF₃ A648 H —OCF₂CF₂O— Particularly preferred are flonicamid, acetamiprid, fipronil, imidacloprid, and compounds of compound Nos. A120 and A190.

Fungicides mixable into the pyripyropene derivatives include, for example, strobilrin compounds such as azoxystrobin, kresoxym-methyl, trifloxystrobin, orysastrobin, picoxystrobin, and fuoxastrobin; anilinopyrimidine compounds such as mepanipyrim, pyrimethanil, and cyprodinil; azole compounds such as triadimefon, bitertanol, triflumizole, etaconazole, propiconazole, penconazole, flusilazole, myclobutanil, cyproconazole, tebuconazole, hexaconazole, prochloraz, and simeconazole; quinoxaline compounds such as quinomethionate; dithiocarbamate compounds such as maneb, zineb, mancozeb, polycarbamate, and propineb; phenylcarbamate compounds such as diethofencarb; organochlorine compounds such as chlorothalonil and quintozene; benzimidazole compounds such as benomyl, thiophanate-methyl, and carbendazole; phenylamide compounds such as metalaxyl, oxadixyl, ofurase, benalaxyl, furalaxyl, and cyprofuram; sulfenic acid compounds such as dichlofluanid; copper compounds such as copper hydroxide and oxine-copper; isoxazole compounds such as hydroxyisoxazole; organophosphorus compounds such as fosetyl-aluminium and tolclofos-methyl; N-halogenothioalkyl compounds such as captan, captafol, and folpet; dicarboxylmide compounds such as procymidone, iprodione, and vinchlozolin; benzanilide compounds such as flutolanil and mepronil; morpholine comopounds such as fenpropimorph and dimethomorph; organotin compounds such as fenthin hydroxide, and fenthin acetate; and cyanopyrrole compounds such as fludioxonil and fenpiclonil. Other fungicides include fthalide, probenazole, acibenzolar-S-methyl, tiadinil, isotianil, carpropamid, diclocymet, fenoxanil, tricyclazole, pyroquilon, ferimzone, fluazinam, cymoxanil, triforine, pyrifenox, fenarimol, fenpropidin, pencycuron, cyazofamid, cyflufenamid, boscalid, penthiopyrad, proquinazid, quinoxyfen, famoxadone, fenamidone, iprovalicarb, benthiavalicarb-isopropyl, fluopicolide, pyribencarb, kasugamycin, and validamycin.

In another preferred embodiment of the present invention, the pest control composition comprises, as active ingredients, a pyripyropene derivative of formula (I), wherein Het₁ represents 3-pyridyl, R₁ represents hydroxyl, R₂ and R₃ represents cyclopropylcarbonyloxy, R₄ represents hydroxyl, or an agriculturally and horticulturally acceptable salt thereof and

an insecticide as other pest control agent, the insecticide being a compound selected from the group consisting of flonicamid, acetamiprid, fipronil, imidacloprid, chlorfenapyr, clothianidin, thiamethoxam, and dinotefuran and compounds of formula (II) wherein R₁₀₁ represents methoxycarbonyl, R₁₀₂ represents methyl, R₁₀₃ represents ethyl, X₁₀₁, Y₁₀₄, and Y₁₀₅ represent a hydrogen atom, X₁₀₂ represents methyl, and Y₁₀₁, Y₁₀₂, and Y₁₀₃ represent a group shown in Table 16 below:

TABLE 16 Compound No. Y₁₀₁ Y₁₀₂ Y₁₀₃ A120 H H OCF₃ A190 H H OCF₂CHF₂ A257 Cl H OCF₃ A648 H —OCF₂CF₂O—

According to another aspect of the present invention, there is provided a pest control composition that, in addition to the above ingredients, comprises a suitable agriculturally and horticulturally acceptable carrier. The pest control composition may be formulated into any suitable dosage forms, for example, emulsifiable concentrates, liquid formulations, suspensions, wettable powders, water dispersible granules, floables, dusts, DL dusts, granules, micro granule fines, tablets, oils, aerosols, smoking agents, or microcapsules. These dosage forms may be produced as described, for example, in “Noyaku Seizai Gaido (Guide for Pesticide Formulation)” edited by “Seyoho Kenkyukai (Special Committee on Agricultural Formulation and Application)”, Japan Plant Protection Association, 1997.

Carriers usable herein include solid carriers, liquid carriers, gaseous carriers, surfactants, dispersants, and other adjuvants for formulations.

Solid carriers include, for example, talc, bentonite, clay, kaolin, diatomaceous earth, vermiculite, white carbon, and calcium carbonate.

Liquid carriers include, for example, alcohols such as methanol, n-hexanol, and ethylene glycol; ketones such as acetone, methyl ethyl ketone, and cyclohexanone; aliphatic hydrocarbons such as n-hexane, kerosine, and kerosene; aromatic hydrocarbons such as toluene, xylene, and methylnaphthalene; ethers such as diethyl ether, dioxane, and tetrahydrofuran; esters such as ethyl acetate; nitriles such as acetonitrile and isobutyronitrile; acid amides such as dimethylformamide and dimethylacetamide; vegetable oils such as soy bean oil and cotton seed oil; dimethylsulfoxide; and water.

Gaseous carriers include, for example, LPG, air, nitrogen, carbon dioxide, and dimethyl ether.

Surfactants or dispersants usable, for example, for emulsifying, dispersing, or spreading include, for example, alkylsulfuric esters, alkyl(aryl)sulfonic acid salts, polyoxyalkylene alkyl(aryl)ethers, polyhydric alcohol esters, and lignin sulfonic acid salts.

Adjuvants usable for improving the properties of formulations include, for example, carboxymethylcellulose, gum arabic, polyethylene glycol, and calcium stearate.

The above carriers, surfactants, dispersants, and adjuvants may be used either solely or in combination according to need.

The total content of the active ingredients in the composition according to the present invention is 0.1 to 99.9% by weight, preferably 0.2 to 80% by weight. The mixing ratio between the pyripyropene derivative of formula (I) and the other pest control agent(s) may vary in a wide range. In general, the composition according to the present invention contains 0.1 to 80% by weight of the pyripyropene derivative.

Pest control compositions, which further comprise agriculturally and horticulturally acceptable carriers, in a preferred embodiment include:

(1) a composition in a wettable powder form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.6 to 30% by weight of a wetting agent and a dispersant, and 20 to 95% by weight of an extender,

(2) a composition in a water dispersible granule form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.6 to 30% by weight of a wetting agent, a dispersant, and a binder, and 20 to 95% by weight of an extender,

(3) a composition in a floable form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 5 to 40% by weight of a dispersant, a thickening agent, an antifreezing agent, an antiseptic, and an antifoaming agent, and 20 to 94% by weight of water,

(4) a composition in an emulsifiable concentrate comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 1 to 30% by weight of an emulsifier and an emulsion stabilizer, and 20 to 97% by weight of an organic solvent,

(5) a composition in a dust form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, and 70 to 99.8% by weight of an extender,

(6) a composition in a DL dust (low drift dust) form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, and 70 to 99.8% by weight of an extender,

(7) a composition in a micro granule fine form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.2 to 10% by weight of a solvent or a binder, and 70 to 99.6% by weight of an extender,

(8) a composition in a granule form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.5 to 30% by weight of a granulation assistant (a surfactant) and a binder, and 20 to 98% by weight of an extender, and

(9) a composition in a microcapsule form comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 1 to 50% by weight of a coating agent, an emulsifier, a dispersant, and an antiseptic, and 20 to 98% by weight of water. Among them, the composition (1), (2), (3), (4), (7), or (8) is preferred, and the composition (2), (3), (4), or (8) is more preferred.

In the pest control composition according to the present invention, a method may be adopted in which a first composition containing, as active ingredient, only a first active ingredient of the pest control composition according to the present invention, i.e., at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof, and a second composition containing, as active ingredient, only a second active ingredient of the pest control composition according to the present invention, i.e., at least one other pest control agent, are prepared and, in use, these two compositions are mixed together on site.

Thus, according to still another aspect of the present invention, there is provided a combination comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent.

In another preferred embodiment of the present invention, in the combination, the at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof is provided as a first composition containing the at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof as active ingredient, and at least one other pest control agent is provided as a second composition containing the at least one other pest control agent as active ingredient. In this case, as with the above pest control composition, the first and second compositions may be in any desired dosage form using a suitable carrier or adjuvant. The combination may also be provided in a form like a drug set.

According to a further aspect of the present invention, there is provided a method protecting useful plants from pests, comprising applying at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent simultaneously or separately from each other to an area to be treated.

In this method, applying “simultaneously” embraces a case where at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent are mixed together before application to an area to be treated and the mixture is applied to the object area. On the other hand, applying “separately” embraces a case where, without previously mixing at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent together, at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof is applied before the application of at least one other pest control agent, and a case where, without previously mixing at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent together, at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof is applied after the application of at least one other pest control agent.

According to another aspect of the present invention, there is provided a method for protecting useful plants from pests, comprising applying

(1) a first composition comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof as active ingredient and

(2) a second composition comprising at least one other pest control agent as active ingredient to an area to be treated.

According to still another aspect of the present invention, there is provided a method for protecting useful plants from pests, comprising treating an object pest, an object useful plant, or a seed, a soil, or a cultivation carrier of the object useful plant with the pest control composition or the combination according to the present invention as such or after dilution.

According to a further aspect of the present invention, there is provided use of the pest control composition or the combination according to the present invention for the protection of useful plants from pests.

Methods for treating the object pest, the object useful plant, or the seed, soil, or cultivation carrier of the object useful plant with the pest control composition according to the present invention include, for example, spreading treatment, soil treatment, surface treatment, and fumigation. Spreading treatments include, for example, spreading, spraying, misting, atomizing, granule, application, and application to water surface. Soil treatments include, for example, soil drenching and soil admixing. Surface treatments include, for example, coating, dressing, and covering. Fumigation treatments include, for example, covering of soil with a polyethylene film after soil injection. Accordingly, the use of the pest control composition according to the present invention includes the application of the pest control composition according to the present invention by fumigation in a sealed space.

Insect pest species against which the composition according to the present invention exhibits control effect include: lepidopteran insect pests, for example, Spodoptera litura, Mamestra brassicae, Pseudaletia separata, green caterpillar, Plutella xylostella, Spodoptera exigua, Chilo suppressalis, Cnaphalocrocis medinalis, Tortricidae, Carposimidae, Lyonetiidae, Lymantriidae, insect pests belonging to the genus Agrotis spp., insect pests belonging to the genus Helicoverpa spp., and insect pests belonging to the genus Heliothis spp.; hemipteran insect pests, for example, Aphididae, Adelgidae or Phylloxeridae such as Myzus persicae, Aphis gossypii, Aphis fabae, Aphis maidis (corn-leaf aphid), Acyrthosiphon pisum, Aulacorthum solani, Aphis craccivora, Macrosiphum euphorbiae, Macrosiphum avenae, Methopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum, Brevicoryne brassicae, Lipaphis erysimi, Aphis citricola, Rosy apple aphid, Eriosoma lanigerum, Toxoptera aurantii, and Toxoptera citricidus, Deltocephalidae such as Nephotettix cincticeps, Delphacidae such as Laodelphax striatellus, Nilaparvata lugens, and Sogatella furcifera, Pentatomidae such as Eysarcoris ventralis, Nezara viridula, and Trigonotylus ruficornis, Aleyrodidae such as Bemisia tabaci Genn., Bemisia tabaci, and Trialeurodes vaporariorum, and Diaspididae, Margarodidae, Ortheziidae, Aclerdiae, Dactylopiidae, Kerridae, Pseudococcidae, Coccidae, Eriococcidae, Asterolecamidae, Beesonidae, Lecanodiaspididae, or Cerococcidae, such as Pseudococcus comstocki and Planococcus citri Risso; Coleoptera insect pests, for example, Lissorhoptrus oryzophilus, Callosobruchuys chienensis, Tenebrio molitor, Diabrotica virgifera virgifera, Diabrotica undecimpunctata howardi, Anomala cuprea, Anomala rufocuprea, Phyllotreta striolata, Aulacophora femoralis, Leptinotarsa decemlineata, Oulema oryzae, Bostrychidae, and Cerambycidae; Acari, for example, Tetranychus urticae, Tetranychus kanzawai, and Panonychus citri; Hymenopteran insect pests, for example, Tenthredimidae; Orthopteran insect pests, for example, Acrididae; Dipteran insect pests, for example, Muscidae and Agromyzidae; Thysanopteran insect pests, for example, Thrips palmi and Frankliniella occidentalis; Plant Parasitic Nematodes, for example, Meloidogyne hapla, Pratylenchus, Aphelenchoides besseyi, and Bursaphelenchus xylophilus; and zooparasite, for example, Aphaniptera, Anoplura, mites such as Boophilus spp., Haemaphysalis longicornis, Rhipicephalus sanguineus, and Sarcoptes spp. Preferred are hemipteran insect pests and lepidopteran insect pests.

Preferred hemipteran insect pests are selected from Aphididae, Adelgidae, and Phylloxeridae, particularly preferably Aphididae; Diaspididae, Margarodidae, Ortheziidae, Aclerdiae, Dactylopiidae, Kerridae, Pseudococcidae, Coccidae, Eriococcidae, Asterolecamidae, Beesonidae, Lecanodiaspididae, and Cerococcidae; or Aleyrodidae. More preferred are Myzus persicae, Aphis gossypii, Aphis fabae, Aphis maidis (corn-leaf aphid), Acyrthosiphon pisum, Aulacorthum solani, Aphis craccivora, Macrosiphum euphorbiae, Macrosiphum avenae, Metopolophium dirhodum, Rhopalosiphum padi, Schizaphis graminum, Brevicoryne brassicae, Lipaphis erysimi, Aphis citricola, Rosy apple aphid, Eriosoma lanigerum, Toxoptera aurantii, Toxoptera citricidus, Pseudococcus comstocki, or Trialeurodes vaporariorum (Greenhouse whitefly).

EXAMPLES

The present invention is further illustrated by the following Examples that are not intended as a limitation of the invention. In the Examples, compounds 261 and 237 were synthesized as described in WO 2006/129714, and compounds A120, A190, A257, and A648 were synthesized as described in WO 2006/013896.

SYNTHETIC EXAMPLES Synthetic Example 1 Synthetic Example of Compound 277

Compound 261 (20 mg) was dissolved in dichloromethane (1 ml). Dess-Martin periodinane (21 mg) was added to the solution at 0° C., and, in this state, the mixture was stirred for 2 hr 40 min. A saturated aqueous sodium thiosulfate solution was added to the reaction solution, and the mixture was extracted with chloroform. The chloroform layer was washed with saturated brine and was dried over anhydrous magnesium sulfate. The solvent was then removed by evaporation under the reduced pressure, and the crude product thus obtained was purified by preparative thin-layer chromatography (Merck silica gel 60 F (0.5 mm), acetone:hexane=1:1) to give compound 277 (5.4 mg).

Synthetic Example 2 Synthetic Example of Compound 278

Compound 261 (50 mg) was dissolved in toluene (3 ml). 1,1′-Thiocarbonyldiimidazole (90 mg) was added to the solution at room temperature, and the mixture was heated under reflux for 2.5 hr. The reaction solution was cooled to room temperature. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine and was dried over anhydrous magnesium sulfate, and the solvent was then removed by evaporation under the reduced pressure. The crude product thus obtained was purified by preparative thin-layer chromatography (Merck silica gel 60 F (0.5 mm), acetone:hexane=1:1). The product (41 mg) thus obtained was dissolved in toluene (2 ml), tri-n-butyltin hydride (20 mg) was added to the solution at room temperature, and the mixture was heated under reflux for 2.5 hr. The reaction solution was cooled to room temperature, water was added to the cooled reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine and was dried over anhydrous magnesium sulfate, and the solvent was then removed by evaporation under the reduced pressure. The crude product thus obtained was purified by preparative thin-layer chromatography (Merck silica gel 60 F (0.5 mm), acetone:hexane=1:1) to give compound 278 (3.5 mg).

For compounds 227 and 278 produced in Synthetic Examples 1 and 2, ¹H-NMR data and mass spectrometric data are shown in Table 17.

TABLE 17 Mass spectrometric data Com- NMR data Measuring pound Solvent ¹H-NMR δ (ppm) method Data 277 CDCl₃ 0.83-1.00 (8H, m), 0.96 (3H, s), ESI 592 1.44 (1H, m), 1.53-1.61 (2H, m), (M + H)⁺ 1.63 (3H, s), 1.76 (1H, d, J = 3.7 Hz), 1.81 (3H, s), 1.87 (2H, m), 1.94-1.97 (1H, m), 2.21 (1H, m), 2.53 (1H, dd, J = 2.6, 14.9 Hz), 2.78 (1H, t, J = 14.9 Hz), 2.91 (1H, d, J = 1.5 Hz), 3.66 (1H, d, J = 12.0 Hz), 3.84 (1H, d, J = 12.0 Hz), 4.82 (1H, dd, J = 4.8, 11.7 Hz), 5.06 (1H, m), 6.71 (1H, s), 7.41 (1H, dd, J = 4.8, 8.0 Hz), 8.09 (1H, dt, J = 1.7, 8.0 Hz), 8.70 (1H, dd, J = 1.7, 4.8 Hz), 9.02 (1H, d, J =1.7 Hz) 278 CDCl₃ 0.84-1.00 (8H, m), 0.90 (3H, s), ESI 578 1.12-1.16 (1H, m), 1.25 (1H, s), (M + H)⁺ 1.35-1.46 (1H, m), 1.41 (3H, s), 1.56-1.70 (5H, m), 1.66 (3H, s), 1.78-1.89 (2H, m), 2.12-2.17 (2H, m), 2.82 (1H, d, J = 1.4 Hz), 3.69 (1H, d, J = 11.9 Hz), 3.91 (1H, d, J = 11.9 Hz), 4.83 (1H, dd, J = 5.1, 11.5 Hz), 4.99 (1H, m), 6.46 (1H, s), 7.42 (1H, m), 8.11 (1H, dt, J = 1.7, 8.0 Hz), 8.69 (1H, m), 9.01 (1H, m)

PREPARATION EXAMPLES Preparation Example 1 Wettable Powder

Pyripyropene derivative (compound 261) 10 wt % Imidacloprid 20 wt % Clay 50 wt % White carbon  2 wt % Diatomaceous earth 13 wt % Calcium lignin sulfonate  4 wt % Sodium lauryl sulfate  1 wt %

The above ingredients were intimately mixed together, and the mixture was ground to prepare wettable powder.

Preparation Example 2 Water Dispersible Granule

Pyripyropene derivative (compound 237) 10 wt % Imidacloprid 20 wt % Clay 60 wt % Dextrin  5 wt % Alkylmaleic acid copolymer  4 wt % Sodium lauryl sulfate  1 wt %

The above ingredients were homogeneously ground and intimately mixed together. Water was added to the mixture, followed by thorough kneading. Thereafter, the kneaded product was granulated and dried to prepare a water dispersible granule.

Preparation Example 3 Floables

Pyripyropene derivative (compound 261) 5 wt % Flonicamid 20 wt % POE polystyryl phenyl ether sulfate 5 wt % Propylene glycol 6 wt % Bentonite 1 wt % 1% aqueous xanthan gum solution 3 wt % PRONAL EX-300 (Toho Chemical Industry Co., Ltd.) 0.05 wt % ADDAC 827 (K.I. Chemical Industry Co., Ltd.) 0.02 wt % Water To 100 wt %

All the above ingredients except for the 1% aqueous xanthan gum solution and a suitable amount of water were premixed together, and the mixture was then ground by a wet grinding mill. Thereafter, the 1% aqueous xanthan gum solution and the remaining water were added to the ground product to prepare 100 wt % floables.

Preparation Example 4 Emulsifiable Concentrate

Pyripyropene derivative (compound 237)  2 wt % Acetamiprid 13 wt % N,N-dimethylformamide 20 wt % Solvesso 150 (Exxon Mobil Corporation) 55 wt % Polyoxyethylene alkyl aryl ether 10 wt %

The above ingredients were intimately mixed together and dissolved to prepare an emulsifiable concentrate.

Preparation Example 5 Dust

Pyripyropene derivative (compound 277) 0.5 wt % Acetamiprid 1.5 wt % Clay  60 wt % Talc  37 wt % Calcium stearate   1 wt %

The above ingredients were intimately mixed together to prepare dust.

Preparation Example 6 DL Dust

Pyripyropene derivative (compound 277) 1 wt % Fipronil 1 wt % DL clay 94.5 wt %   White carbon 2 wt % Calcium stearate 1 wt % Light liquid paraffin 0.5 wt %  

The above ingredients were intimately mixed together to prepare DL dust.

Preparation Example 7 Micro Granule Fine

Pyripyropene derivative (compound 261) 1 wt % Flonicamid 1 wt % Carrier 94 wt %  White carbon 2 wt % Hisol SAS-296 2 wt %

The above ingredients were intimately mixed together to prepare micro granule fine.

Preparation Example 8 Granules

Pyripyropene derivative (compound 278)  2 wt % Flonicamid  3 wt % Bentonite 40 wt % Talc 10 wt % Clay 43 wt % Calcium lignin sulfonate  2 wt %

The above ingredients were homogeneously ground and intimately mixed together. Water was added to the mixture, followed by thorough kneading. Thereafter, the kneaded product was granulated and dried to prepare granules.

Preparation Example 9 Microcapsules

Pyripyropene derivative (compound 237) 2 wt % Imidacloprid 3 wt % Urethane resin 25 wt %  Emulsifying dispersant 5 wt % Antiseptic 0.2 wt %   Water 64.8 wt %  

The above ingredients were polymerized by interfacial polymerization to form a urethane resin film on the surface of pyripyropene derivative particles and imidacloprid particles and thus prepare microcapsules.

TEST EXAMPLES Test Example 1 Pesticidal Effect Against Aphis gossypii (Part 1)

A leaf disk having a diameter of 2.0 cmφ was cut out from a cucumber grown in a pot and was placed in a 5.0 cm-Schale. Test admixture solutions, prepared by diluting the composition of the present invention with a 50% aqueous acetone solution (0.05% Tween 20 added) to predetermined concentrations specified in Table 18, test single active ingredient solutions in which only compound 261 had been dissolved without mixing other insecticides, or test single active ingredient solutions in which only other insecticides had been dissolved without mixing any pyripyropene derivative were spread over the cucumber leaf disk. The leaf disk was then air dried. Ten larvae at the first instar born of Aphis gossypii were released in the Schale. Thereafter, the Schale was lidded and was allowed to stand in a humidistat chamber (light period 16 hr-dark period 8 hr) (25° C.). Three days after the initiation of standing of the Schale, the larvae were observed for survival or death, and the death rate of larvae was calculated by the following equation. The results are shown in Table 18.

Death rate (%)={number of dead larvae/(number of survived larvae+number of dead larvae)}×100

Further, theoretical values, which do not exhibit a synergistic effect, were calculated by the following Colby's formula, and the results are shown in Table 19.

Colby's formula: Theoretical value (%)=100−(A×B)/100

wherein A: 100−(death rate when treatment was performed only with compound 261); and

-   -   B: 100−(death rate when treatment was performed only with each         of flonicamid, acetamiprid, fipronil, imidacloprid)

Method for Determining Synergistic Effect

When the pesticidal effect (Table 18) of the composition of the present invention in, an admixture form against Aphis gossypii exceeded the theoretical value calculated by the Colby's formula shown in Table 19, the admixture was determined to have a synergistic effect.

All the tested admixtures had the death rate beyond the theoretical values, demonstrating that they had a synergistic effect.

TABLE 18 Death rate of Aphis gossypii by single active ingredient or admixture (%) Other Compound 261 insecticides 0 ppm 0.01 ppm — 0 30 Flonicamid 0.078 ppm 10 60 Acetamiprid 0.078 ppm 58 100 Fipronil 0.078 ppm 0 63 Imidacloprid 0.078 ppm 20 95

TABLE 19 Theoretical value calculated by Colby's formula (%) Other Compound 261 insecticides 0 ppm 0.01 ppm — 0 30 Flonicamid 0.078 ppm 10 37 Acetamiprid 0.078 ppm 58 71 Fipronil 0.078 ppm 0 30 Imidacloprid 0.078 ppm 20 44

Test Example 2 Pesticidal Effect Against Aphis gossypii (Part 2)

The same test as in Test Example 1 was performed, except that the other insecticides were changed to those specified in Table 20. The pesticidal effect and theoretical values were calculated, and the results are shown in Tables 20 and 21.

All the tested admixtures had the death rate beyond the theoretical values, demonstrating that they had a synergistic effect.

TABLE 20 Pesticidal effect against Aphis gossypii, death rate (%) Other Compound 261 insecticides 0 ppm 0.01 ppm — 0 53 Clothianidin 0.078 ppm 79 100 Thiamethoxam 0.078 ppm 65 90 Dinotefuran 0.078 ppm 40 75

TABLE 21 Theoretical value calculated by Colby's formula (%) Other Compound 261 insecticides 0 ppm 0.01 ppm — 0 53 Clothianidin 0.078 ppm 79 90 Thiamethoxam 0.078 ppm 65 84 Dinotefuran 0.078 ppm 40 72

Test Example 3 Pesticidal Effect Against Plutella xylostella

A leaf disk having a diameter of 5.0 cmφ was cut out from a cabbage grown in a pot and was placed in a plastic cup. Test admixture solutions, prepared by diluting the composition of the present invention with a 50% aqueous acetone solution (0.05% Tween 20 added) to predetermined concentrations specified in Table 22, test single active ingredient solutions in which only compound 261 had been dissolved without mixing other insecticides, or test single active ingredient solutions in which only other insecticides had been dissolved without mixing any pyripyropene derivative were spread over the cabbage leaf disk. The leaf disk was then air dried. Five larvae at the second instar born of Plutella xylostella were released in the cup. Thereafter, the cup was lidded and was allowed to stand in a humidistat chamber (light period 16 hr-dark period 8 hr) (25° C.). Three days after the initiation of standing of the cup, the larvae were observed for survival or death, and the death rate of larvae was calculated by the following equation. The results are shown in Table 22.

Death rate (%)={number of dead larvae/(number of survived larvae+number of dead larvae)}×100

The death rates are shown below.

Further, theoretical values, which do not exhibit a synergistic effect, were calculated by the following Colby's formula, and the results are shown in Table 23.

Colby's formula: Theoretical value (%)=100−(A×B)/100

wherein A: 100−(death rate when treatment was performed only with compound 261); and

-   -   B: 100−(death rate when treatment was performed only with each         compound, i.e., A120, A190, or chlorfenapyr)

Method for Determining Synergistic Effect

When the pesticidal effect (Table 22) of the composition of the present invention in an admixture form against Plutella xylostella exceeded the theoretical value calculated by the Colby's formula shown in Table 23, the admixture was determined to have a synergistic effect.

All the tested admixtures had the death rate beyond the theoretical values, demonstrating that they had a synergistic effect.

TABLE 22 Pesticidal effect against Plutella xylostella, deathrate (%) Other Compound 261 insecticides 0 ppm 10 ppm — 0 0 Compound A120 (WO2006/013896) 0.156 ppm 10 50 Compound A190 (WO2006/013896) 0.313 ppm 0 20 Chlorfenapyr 0.156 ppm 0 20

TABLE 23 Theoretical value calculated by Colby's formula (%) Other Compound 261 insecticides 0 ppm 0.01 ppm — 0 0 Compound A120 (WO2006/013896) 0.156 ppm 10 10 Compound A190 (WO2006/013896) 0.313 ppm 0 0 Chlorfenapyr 0.156 ppm 0 0 

1. A pest control composition comprising at least one pyripyropene derivative of chemical formula (I) or agriculturally and horticulturally acceptable salt thereof and at least one other pest control agent selected from the group consisting of flonicamid, fipronil, chlorfenapyr, clothianidin, thiamethoxam, and dinotefuran as active ingredients:

wherein Het₁ represents 3-pyridyl, R₁ represents hydroxyl, R₂ and R₃ represent cyclopropylcarbonyloxy, and R₄ represents hydroxyl. 2-6. (canceled)
 7. The composition according to claim 1, which further comprises an agriculturally and horticulturally acceptable carrier. 8-12. (canceled)
 13. The composition according to claim 1, which is a wettable powder comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.6 to 30% by weight of a wetting agent and a dispersant, and 20 to 95% by weight of an extender.
 14. The composition according to claim 1, which is a water dispersible granule comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.6 to 30% by weight of a wetting agent, a dispersant, and a binder, and 20 to 95% by weight of an extender.
 15. The composition according to claim 1, which is a floable preparation comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 5 to 40% by weight of a dispersant, a thickening agent, an antifreezing agent, an antiseptic, and an antifoaming agent, and 20 to 94% by weight of water.
 16. The composition according to claim 1, which is an emulsifiable concentrate comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 1 to 30% by weight of an emulsifier and an emulsion stabilizer, and 20 to 97% by weight of an organic solvent.
 17. The composition according to claim 1, which is a micro granule fine comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.2 to 10% by weight of a solvent or a binder, and 70 to 99.6% by weight of an extender.
 18. The composition according to claim 1, which is a granule comprising 0.1 to 80% by weight of the pyripyropene derivative of formula (I), 0.1 to 80% by weight of an insecticide as the other pest control agent, 0.5 to 30% by weight of a granulation assistant (a surfactant) and a binder, and 20 to 98% by weight of an extender.
 19. A combination comprising at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof defined in claim 1 and at least one other pest control agent as active ingredients.
 20. A method for protecting useful plants from pests, comprising applying at least one pyripyropene derivative of formula (I) or agriculturally and horticulturally acceptable salt thereof defined in claim 1 and at least one other pest control agent as active ingredients simultaneously or separately from each other to an area to be treated.
 21. The method according to claim 20, wherein the ingredients are simultaneously applied to the area to be treated.
 22. A method for protecting useful plants from pests, comprising treating an object pest, an object useful plant, or a seed, a soil, or a cultivation carrier of the object useful plant with a pest control composition according to claim
 1. 23. A method for protecting useful plants from pests, comprising treating an object pest, an object useful plant, or a seed, a soil, or a cultivation carrier of the object useful plant with a combination according to claim
 19. 